Re: WAL archive (archive_mode = always) ?

Hello Takayuki,

Sorry can you explain how we can same network bandwidth by not sending the
WAL archive from the primary to the standby(s).
I possible scenario is have to multiple standby servers in same host for
same master. or other scenarios exists ?

Many thanks in advance,
Adelino.

On Mon, Oct 22, 2018 at 1:47 AM Tsunakawa, Takayuki <
tsunakawa(dot)takay(at)jp(dot)fujitsu(dot)com> wrote:

> From: Adelino Silva [mailto:adelino(dot)j(dot)silva(at)googlemail(dot)com]
> > What is the advantage to use archive_mode = always in a slave server
> compared
> > to archive_mode = on (shared WAL archive) ?
> >
> > I only see duplication of Wal files, what is the purpose of this feature
> ?
>
> This also saves you the network bandwidth by not sending the WAL archive
> from the primary to the standby(s). The network bandwidth can be costly
> between remote regions for disaster recovery.
>
>
> Regards
> Takayuki Tsunakawa
>
>
>
>